CN220336050U - A water conservancy and drainage pipe that prevents sewage backflow - Google Patents

Abstract

The utility model relates to a water conservancy drainage pipe that prevents sewage backflow, including a drainage pipe. A fixed ring plate is fixedly connected to the inside of the drainage pipe, and an annular sealing plate is fixedly connected to one side of the fixed ring plate. The fixed ring plate There are two water-blocking plates rotatably connected to one side of the water-blocking plate, and fixed blocks are fixedly connected to one side of the two water-blocking plates. A fixed plate is fixedly connected to the inside of the drainage pipe, and the fixed plate is slidingly connected to the inside of the drainage pipe. Moving rod, one end of the moving rod away from the fixed ring plate is fixedly connected with a flow guide cone, one side of the water blocking plate and one end of the moving rod are provided with a linkage component, and the linkage component is used to drive the water blocking plate to rotate. The utility model solves the problem that the existing drainage pipeline does not have the function of preventing the backflow of sewage, which affects the use of users and greatly reduces the practicality of the drainage pipeline.

Description

A water conservancy and drainage pipe that prevents sewage backflow

Technical field

The utility model relates to a drainage pipe, in particular to a water conservancy drainage pipe that prevents the backflow of sewage.

Background technique

Drainage pipes refer to the system of pipes and ancillary facilities that collect drainage, sewage, wastewater and rainwater, including main pipes, branch pipes and pipes leading to treatment plants, regardless of whether they are built on streets or anywhere else, as long as they are used for drainage Functional pipes should be counted as drainage pipes.

Most of the existing drainage pipelines do not have the function of preventing backflow, so it is easy to cause the sewage in the pipeline to backflow, affecting the use of users, and greatly reducing the practicality of the drainage pipeline.

Utility model content

In view of the above-mentioned problems existing in the prior art, the main purpose of the present utility model is to provide a water conservancy drainage pipeline that prevents the backflow of sewage.

The technical solution of the present invention is as follows: a water conservancy drainage pipe that prevents sewage backflow, including a drainage pipe, a fixed ring plate is fixedly connected to the inside of the drainage pipe, and an annular sealing plate is fixedly connected to one side of the fixed ring plate. , one side of the fixed ring plate is rotatably connected to two water-blocking plates, one side of the two water-blocking plates is fixedly connected to a fixing block, the inside of the drainage pipe is fixedly connected to a fixing plate, and the fixing There is a moving rod slidingly connected to the inside of the plate. One end of the moving rod away from the fixed ring plate is fixedly connected with a flow guide cone. One side of the water blocking plate and one end of the moving rod are provided with a linkage assembly. The linkage assembly is used for Drive the water blocking plate to rotate.

As a preferred embodiment, one side of the two water blocking plates is fixedly connected with a sealing strip, and the side away from the fixed ring plate is provided with an annular sealing groove matching the sealing strip.

As a preferred embodiment, the linkage assembly includes a support rod, a push plate is fixedly connected to one end of the moving rod close to the fixed ring plate, a fixed block is fixedly connected to one side of the water blocking plate, and the push plate A support rod is rotatably connected to the fixed block, and a spring is set on the outside of the moving rod and between the push rod and the fixed plate.

As a preferred embodiment, the water blocking plate has a semicircular plate structure.

As a preferred embodiment, the inner wall of the drainage pipe is painted with acrylic polyurethane paint, and the thickness of the acrylic polyurethane paint is forty to fifty millimeters.

As a preferred embodiment, a protective shell is provided on the outside of the drainage pipe, and an anti-pressure and impact-resistant layer is provided between the protective shell and the drainage pipe.

As a preferred embodiment, a spiral steel wire is provided inside the anti-pressure and impact-resistant layer, and the anti-pressure and impact-resistant layer is made of polyurethane material.

Compared with the existing technology, the advantages and positive effects of this utility model are:

1. By setting up the water blocking plate and the annular sealing plate, when the water pressure is greater than the spring, the water flow rushes open the water blocking plate, and the two water blocking plates rotate to the middle, driving the movement of the support rod, squeezing the push plate, and pushing the push plate. The spring is pressed to drive the moving rod to move. One side of the moving rod is fixedly connected with a guide cone, so that the water flows out along the guide plate. When the water flows back, it washes the guide cone, pushes the moving rod to move, and drives the support rod to move. The support rod squeezes the water blocking plate so that the sealing strips at both ends of the water blocking plate are in close contact with the annular sealing groove, which can prevent the backflow of sewage.

2. By setting up a protective shell and painting it with acrylic polyurethane paint, an anti-pressure and impact-resistant layer is installed between the protective shell and the drainage pipe. A spiral steel wire is installed inside the anti-pressure and impact-resistant layer. When the outside world impacts the drainage pipe, it can be protected by the anti-pressure and anti-impact layer. The spiral steel wire inside the impact layer cushions the impact and reduces damage to the drainage pipe from external impacts. The drainage pipe is painted with acrylic polyurethane paint to prevent the drainage pipe from being corroded.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of a water conservancy and drainage pipeline that prevents sewage backflow according to the present invention;

Figure 2 is a front cross-sectional view of a water conservancy and drainage pipeline that prevents sewage backflow according to the present invention;

Figure 3 is a side cross-sectional view of a water conservancy and drainage pipeline that prevents sewage backflow according to the present invention;

Fig. 4 is an enlarged view of position A in Fig. 2 provided by the utility model to prevent the backflow of sewage.

Legend: 1. Drainage pipe; 2. Annular sealing groove; 3. Fixed ring plate; 4. Annular sealing plate; 5. Water blocking plate; 6. Support rod; 7. Spring; 8. Fixed plate; 9. Diversion Cone; 10. Moving rod; 11. Push plate; 12. Sealing strip; 13. Fixed block; 14. Protective shell; 15. Anti-pressure and impact-resistant layer; 16. Spiral steel wire.

Detailed ways

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

It should be noted that when used, the terms up, down, left, right, front, back, top, bottom, forward, reverse, clockwise and counterclockwise in the following description are used only for convenience. , without implying any specific fixed direction. In fact, they are used to reflect the relative position and/or orientation between various parts of the object, and therefore cannot be construed as limitations of the present invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that when used, unless otherwise clearly stated and limited, the terms "installation", "fixing" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a structural connection or a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

It should be noted that these and other subsequent drawings are only examples and are not drawn to equal proportions, and should not be used to limit the scope of protection actually claimed by the present invention. In addition, transformation methods in different embodiments can be appropriately combined.

Example 1

As shown in Figures 1 to 4, the present utility model provides a technical solution: a water conservancy drainage pipe to prevent sewage backflow, including a drainage pipe 1. A fixed ring plate 3 is fixedly connected to the interior of the drainage pipe 1. The fixed ring plate 3 is An annular sealing plate 4 is fixedly connected to one side, and two water-blocking plates 5 are rotationally connected to one side of the fixed ring plate 3. Both sides of the two water-blocking plates 5 are fixedly connected to fixed blocks 13, and the interior of the drainage pipe 1 is fixed. A fixed plate 8 is connected, and a moving rod 10 is slidingly connected inside the fixed plate 8. One end of the moving rod 10 away from the fixed ring plate 3 is fixedly connected to a flow guide cone 9. One side of the water blocking plate 5 is arranged with one end of the moving rod 10. There is a linkage component, and the linkage component is used to drive the water blocking plate 5 to rotate.

Through the above embodiment, when the water flows from left to right, it impacts the water blocking plate 5 and rotates, so that the water flows out of the drainage pipe 1; when a backflow occurs inside the drainage pipe 1, the backflow sewage will first hit the guide cone 9, thereby The moving rod 10 is driven to move, and then the water blocking plate 5 is driven to rotate reversely through the linkage assembly, so that the two water blocking plates 5 and the annular sealing plate 4 fit together, thereby preventing the backflow of sewage and improving the practicality of the drainage pipe 1. Make it more conducive to practical use.

Example 2

As shown in Figures 1 to 4, one side of the two water blocking plates 5 is fixedly connected with a sealing strip 12, and an annular sealing groove 2 matching the sealing strip 12 is provided on the side away from the fixed ring plate 3. The water blocking plate 5 has a semicircular plate structure. By arranging the annular sealing groove 2 and the sealing strip 12 that cooperate with each other, when the water blocking plate 5 is in close contact with the annular sealing plate 4, the sealing strip 12 will enter the annular sealing groove 2 and closely fit it, thereby improving the water blocking plate. The sealing between 5 and the annular sealing plate 4 achieves a water-blocking effect; at the same time, a semi-circular plate structure of the water-blocking plate 5 is provided to facilitate water flow against the water-blocking plate 5 and into the drainage pipe 1 .

Among them, one end of the moving rod 10 close to the fixed ring plate 3 is fixedly connected to a push plate 11, one side of the water blocking plate 5 is fixedly connected to a fixed block 13, and a support rod 6 is rotationally connected between the push plate 11 and the fixed block 13. A spring 7 is mounted on the outside of the rod 10 and between the push plate 11 and the fixed plate 8 . Exclude water flow and prevent water flow back by setting up linkage components.

Among them, the inner wall of the drainage pipe 1 is painted with acrylic polyurethane paint, and the thickness of the acrylic polyurethane paint is forty to fifty millimeters. By applying acrylic polyurethane paint, the corrosion resistance of the inner wall of the drainage pipe 1 is improved. A protective shell 14 is provided on the outside of the drainage pipe 1 , and an anti-pressure and impact-resistant layer 15 is provided between the protective shell 14 and the drainage pipe 1 . The anti-pressure and impact-resistant layer 15 is provided with a spiral steel wire 16 inside, and the anti-pressure and impact-resistant layer 15 is made of polyurethane material. By providing the anti-pressure and impact-resistant layer 15, the stress on the drainage pipe 1 is buffered, and the polyurethane material has good earthquake resistance.

Working principle: When the water flows from the left end of the drainage pipe 1, the water first hits the water blocking plate 5, pushing the water blocking plate 5 to rotate, thereby driving the support rod 6 to move, the support rod 6 drives the push plate 11 to move, and compresses the spring 7 , and then open the drainage pipe 1; when backflow occurs inside the drainage pipe 1, the water flow first hits the guide cone 9, thereby pushing the moving rod 10 to move to the side closer to the fixed ring plate 3, and at the same time driving the push plate 11 to move. At this time, Under the action of the elastic force of the spring 7, the movement is accelerated, and the support rod 6 is used to drive the water blocking plate 5 to rotate in the direction, so that the water blocking plate 5 and the annular sealing plate 4 are closely fitted to prevent the water from flowing back.

Claims (7)

1. The utility model provides a prevent water conservancy drainage pipe of sewage backward flow, includes drainage pipe (1), its characterized in that: the novel water blocking device is characterized in that a fixed ring plate (3) is fixedly connected inside the water draining pipeline (1), an annular sealing plate (4) is fixedly connected to one side of the fixed ring plate (3), two water blocking plates (5) are rotatably connected to one side of the fixed ring plate (3), a fixed block (13) is fixedly connected to one side of each water blocking plate (5), a fixed plate (8) is fixedly connected inside the water draining pipeline (1), a movable rod (10) is slidably connected inside the fixed plate (8), a guide cone (9) is fixedly connected to one end of the movable rod (10) away from the fixed ring plate (3), and a linkage assembly is arranged at one side of each water blocking plate (5) and one end of the movable rod (10) and used for driving the water blocking plates (5) to rotate.

2. A water conservancy drainage pipeline for preventing backflow of sewage according to claim 1, wherein: two sides of the water blocking plates (5) are fixedly connected with sealing strips (12), and an annular sealing groove (2) matched with the sealing strips (12) is formed in one side far away from the fixed ring plate (3).

3. A water conservancy drainage pipeline for preventing backflow of sewage according to claim 1, wherein: one end of the movable rod (10) close to the fixed ring plate (3) is fixedly connected with a push plate (11), one side of the water blocking plate (5) is fixedly connected with a fixed block (13), a stay bar (6) is rotationally connected between the push plate (11) and the fixed block (13), and a spring (7) is sleeved outside the movable rod (10) and between the push plate (11) and the fixed plate (8).

4. A water conservancy drainage pipeline for preventing backflow of sewage according to claim 1, wherein: the water blocking plate (5) is of a semicircular plate structure.

5. A water conservancy drainage pipeline for preventing backflow of sewage according to claim 1, wherein: the inner wall of the drainage pipeline (1) is brushed with acrylic polyurethane coating, and the thickness of the acrylic polyurethane coating is forty to fifty millimeters.

6. The water conservancy drainage pipeline for preventing backflow of sewage as claimed in claim 4, wherein: the outer side of the drainage pipeline (1) is provided with a protective shell (14), and a pressure-proof impact-resistant layer (15) is arranged between the protective shell (14) and the drainage pipeline (1).

7. The water conservancy drainage pipeline for preventing backflow of sewage as claimed in claim 6, wherein: the anti-compression impact-resistant layer (15) is internally provided with a spiral steel wire (16), and the anti-compression impact-resistant layer (15) is made of polyurethane materials.